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arXiv 0901.4685cond-mat.stat-mechmath-phmath.MP
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具有两点和三点相互作用的Temperley-Lieb量子链

A Temperley-Lieb quantum chain with two- and three-site interactions

Yacine Ikhlef, Jesper Lykke Jacobsen, Hubert Saleur

摘要:

我们研究自旋为1/2的粒子的量子链,其世界线形成一个环气体。除了将一对相邻自旋投射到量子群自旋0上的通常相互作用之外,我们还引入了投射到自旋3/2上的三位相互作用。改变这些相互作用的相对强度会导致一个丰富的相图,其中包含间隙和临界相,以及精确的可解点。对于环权$n=2 \cos [π/(p+1)]$,该模型对应于N=p-3种相互作用的任意子,其中只有Fibonacci情况N=1以前被研究过。我们的研究适用于真正的n,并提供了进一步的精确结果,甚至被忽视的特殊情况N=1。

英文摘要:

We study a quantum chain of spin-1/2 particles whose world lines form a loop gas. In addition to the usual interaction that projects a pair of neighboring spins onto quantum-group spin 0, we introduce a three-site interaction that projects onto spin 3/2. Changing the relative strengths of these interactions leads to a rich phase diagram containing gapped and critical phases, and exactly solvable points. For loop weight $n=2 \cos [π/(p+1)]$, the model corresponds to N=p-3 species of interacting anyons, of which only the Fibonacci case N=1 was studied previously. Our study applies to real n, and provides further exact results which were unnoticed even for the special case N=1.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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